Kimbriki LFG flare project

The Kimbriki LFG flare project is a landfill gas capture operation located at the Kimbriki Resource Recovery Centre in Ingleside, approximately 25km north of the Sydney CBD in New South Wales. Registered in September 2015, the project operates within a major waste management facility that serves the Northern Beaches region. The site itself covers approximately 64 hectares, with roughly 34 hectares actively used for waste operations. The surrounding area is defined by semi-rural properties and extensive native bushland, sitting adjacent to the Garigal National Park.

Landfill gas projects under the Carbon Farming Initiative involve the installation of gas collection systems to intercept methane generated by decomposing organic waste. In this project, a network of vertical wells and horizontal trenches captures gas from both legacy and non-legacy waste streams. The captured gas is combusted in a high-temperature flare (operating at roughly 900°C), converting potent methane into carbon dioxide, which has a significantly lower global warming potential.

The Ingleside and Terrey Hills region is known for its relatively high rainfall, often exceeding 900mm annually, which accelerates waste decomposition and gas generation. The natural terrain consists of sandy loams and clays derived from Hawkesbury Sandstone, although the project activity takes place within engineered landfill cells. While the proponent, Kimbriki Environmental Enterprises (majority-owned by Northern Beaches Council), investigated using the gas for electricity generation, it was deemed commercially unviable due to insufficient gas flow volumes, leaving flaring as the primary abatement method. The project successfully completed its initial Carbon Abatement Contract (CAC101989) in 2023.